Aldehydes continued

Ketones and aldehydes (continued) 2-Hexanone (methyl butyl ketone) 4-Methyl-2-pentanone (methyl isobutyl ketone) CH3-C0-C4H9 CH3-CO-CH2-CH(CH3)2... 

The use of a-dicarbonyl compounds with ammonia and an aldehyde continues as a common synthetic method. " Thus a series of 2-aryl-5-trifluoromethyl-4-phenylimidazoles (2) have been prepared from the previously unknown 3,3,3-trifluoro-l-phenylpropane-l,2-dione monohydrate (1) as shown in Eq. (1). As an extension of earlier studies of imidazole formation by the action of ammonia on reducing oligosaccharides, Richards ... 

Reports of reactions of ylides with carbonyl compounds other than ketones and aldehydes continue to appear. Under extreme conditions lactones (66) undergo Wittig reactions with methoxycarbonylmethylene ylide, generally with... 

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